233   DenseMap<LocIdx, SmallSet<DebugVariableID, 4>> ActiveMLocs;  member in TransferTracker
434         ActiveMLocs[Op.Loc].insert(VarID);  in loadVarInloc()
455     ActiveMLocs.clear();  in loadInlocs()
476     ActiveMLocs.reserve(VLocs.size());  in loadInlocs()
706           ActiveMLocs[Loc].erase(VarID);  in redefVar()
744         ActiveMLocs[Loc].erase(VarID);  in redefVar()
765         for (const auto &P : ActiveMLocs[NewLoc]) {  in redefVar()
779           ActiveMLocs[LostMLoc.first].erase(LostMLoc.second);  in redefVar()
782         ActiveMLocs[NewLoc.asU64()].clear();  in redefVar()
786       ActiveMLocs[NewLoc].insert(VarID);  in redefVar()
804     auto ActiveMLocIt = ActiveMLocs.find(MLoc);  in clobberMloc()
805     if (ActiveMLocIt == ActiveMLocs.end())  in clobberMloc()
817     auto ActiveMLocIt = ActiveMLocs.find(MLoc);  in clobberMloc()
818     if (ActiveMLocIt == ActiveMLocs.end())  in clobberMloc()
888       auto LostMLocIt = ActiveMLocs.find(LocVarIt.first);  in clobberMloc()
889       assert(LostMLocIt != ActiveMLocs.end() &&  in clobberMloc()
906         ActiveMLocs[*NewLoc].insert(VarID);  in clobberMloc()
922     auto MovingVars = ActiveMLocs[Src];  in transferMlocs()
923     ActiveMLocs[Dst].insert(MovingVars.begin(), MovingVars.end());  in transferMlocs()
942     ActiveMLocs[Src].clear();  in transferMlocs()
2184       auto MLocIt = TTracker->ActiveMLocs.find(ClobberedLoc);  in transferRegisterCopy()
2187       if (MLocIt == TTracker->ActiveMLocs.end() || MLocIt->second.empty())  in transferRegisterCopy()